public CreateResult <WeightMeasurement> Create(WeightMeasurement measurement)
{
if (measurement is null)
{
return(CreateResult <WeightMeasurement> .BadRequest("Weight measurement failed to be created before storage."));
}
if (measurement.Unit == WeightMeasurement.Units.None)
{
return(CreateResult <WeightMeasurement> .BadRequest("Invalid weight unit provided. Valid values are: " + Enum <WeightMeasurement.Units> .GetValuesAsCSV()));
}
if (measurement.Weight < 0)
{
return(CreateResult <WeightMeasurement> .BadRequest("Weight must be a non-negative value."));
}
try
{
if (measurement.Id == Guid.Empty)
{
measurement.Id = Guid.NewGuid();
}
else
{
var existing = _store.Read(measurement.Id);
if (existing != null && existing.Id.Equals(measurement.Id))
{
return(CreateResult <WeightMeasurement> .Conflict("ID already exists"));
}
}
if (_store.Create(measurement))
{
return(CreateResult <WeightMeasurement> .Created(measurement));
}
else
{
return(CreateResult <WeightMeasurement> .InternalError("Failed to persist the measurement to a data store."));
}
}
catch (Exception ex)
{
return(CreateResult <WeightMeasurement> .HandleException(ex));
}
}